Custom car Builders

We will be closed for the Holidays: December 23rd - 26th.
Any orders placed during this time will be shipped on December 27th.

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More custom car builders from around the country are relying on Flowmaster products for their custom builds to produce that unique “Flowmaster” sound and quality their customers demand. Flowmaster salutes their dedication, creativity, and hard work. The Flowmaster’s Custom Car Builder Program was established to provide support for custom car builders in the area of exhaust technology, new product development, and technical and engineering support.

If you are interested in building a custom car, check out Flowmaster’s growing list of fine custom car builders listed on this page.